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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Test.h"
#include "SkGeometry.h"
static bool nearly_equal(const SkPoint& a, const SkPoint& b) {
return SkScalarNearlyEqual(a.fX, b.fX) && SkScalarNearlyEqual(a.fY, b.fY);
}
static void testChopCubic(skiatest::Reporter* reporter) {
/*
Inspired by this test, which used to assert that the tValues had dups
<path stroke="#202020" d="M0,0 C0,0 1,1 2190,5130 C2190,5070 2220,5010 2205,4980" />
*/
const SkPoint src[] = {
{ SkIntToScalar(2190), SkIntToScalar(5130) },
{ SkIntToScalar(2190), SkIntToScalar(5070) },
{ SkIntToScalar(2220), SkIntToScalar(5010) },
{ SkIntToScalar(2205), SkIntToScalar(4980) },
};
SkPoint dst[13];
SkScalar tValues[3];
// make sure we don't assert internally
int count = SkChopCubicAtMaxCurvature(src, dst, tValues);
if (false) { // avoid bit rot, suppress warning
REPORTER_ASSERT(reporter, count);
}
}
static void TestGeometry(skiatest::Reporter* reporter) {
SkPoint pts[3], dst[5];
pts[0].set(0, 0);
pts[1].set(100, 50);
pts[2].set(0, 100);
int count = SkChopQuadAtMaxCurvature(pts, dst);
REPORTER_ASSERT(reporter, count == 1 || count == 2);
pts[0].set(0, 0);
pts[1].set(SkIntToScalar(3), 0);
pts[2].set(SkIntToScalar(3), SkIntToScalar(3));
SkConvertQuadToCubic(pts, dst);
const SkPoint cubic[] = {
{ 0, 0, },
{ SkIntToScalar(2), 0, },
{ SkIntToScalar(3), SkIntToScalar(1), },
{ SkIntToScalar(3), SkIntToScalar(3) },
};
for (int i = 0; i < 4; ++i) {
REPORTER_ASSERT(reporter, nearly_equal(cubic[i], dst[i]));
}
testChopCubic(reporter);
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("Geometry", GeometryTestClass, TestGeometry)
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